Which three factors that affect receptor exposure can be controlled by the x-ray operator?

In understanding receptor exposure, it's important to recognize the factors that the x-ray operator can control during imaging procedures. The correct answer highlights three factors: filtration, grid ratio, and source-to-image distance (SID).

Filtration is controllable because it involves adjusting the amount and type of material used to filter the X-rays before they reach the receptor. Proper filtration helps to eliminate low-energy X-rays that do not contribute to image formation, thus enhancing the overall image quality and reducing the patient's dose.

Grid ratio refers to the relationship between the height of the lead strips in the grid and the distance between them. Grids are used to reduce scatter radiation, which can degrade image quality. The operator has the ability to select the appropriate grid ratio based on the type of examination being performed, thereby influencing the receptor exposure.

Source-to-image distance (SID) is another variable that the operator can modify. Increasing the SID generally results in decreased receptor exposure due to the inverse square law, which states that as the distance from the X-ray source increases, the intensity of the radiation diminishes. Conversely, reducing the SID increases receptor exposure, allowing for better control over the final image quality.

These three factors are directly controllable by the operator and play a significant role in